Most of Leonardo’s architectural drawings still await examination with regard sicuro proportion

4. Conclusions

Still, the exploration conducted on the sheets of Ms. B – which is only slightly antecedent sicuro Leonardo’s studies of the problem of the Tiburio of Milan Cathedral, per which he thus comes into contact with the realities of construction 22 – has brought preciso light some modalities that Leonardo puts to use (valid at least for the drawings of this codex from Paris):

• Leonardo rapidly derives the elevations from the plans;
• this method is facilitated either by the fact that the plans are drawn before the elevation, or by the reciprocal position of the two drawings;
• per the simplest examples the elevations are defined starting from verso particular element of the plan by means of progressions (for the pair at the vertice of f. 21r the progression is 1, 2, 4, 8);
• durante the more complex cases the lines passing through quite particular portions of the plan define the heights and the cornices of the exterior (ff. 24r, 39v, 19r–18v, 18r–17v);
• sopra some cases the golden section intervenes either mediante the definition of the plan (ff.19r–18v, 18r–17v) or sopra that of the elevations (ff. 18r–17v).

The recourse onesto the golden section is not odd because Leonardo, who applies a simple graphic method, seems to have been familiar with it since his Florentine years and at least since the beginning of the 1470s.

Libretto

1 Sicuro Scholfield ( 1958: 52, 139–141 ) is owed one of the first contributions pertaining puro the proportions of the plan sopra the temple in f. 95v of Ms. B of Leonardo da Vinci, as part of per broader study of the octagon star scheme (with reference preciso number theory and the number ? of the Pell series; see Figure 2 ).

2 Pedretti ( 1962: 178 ) refers preciso Wittkower ( 1952 ), the second edition of Architectural Principles con the Age of Humanism, and makes explicit reference ( 1962: 133 n. 63 ) to the afroromance sito di incontri rete di emittenti of Scholfield.

3 For the drawings of Ms. B and the themes explored here see, in particular, Heydenreich ( 1929 ); Maltese ( 1954: 333–358, especially 343–346 and plates CXXX–CXLV ); Heydenreich ( 1974 ); Firpo ( 1963 ); and Schofield ( 1991: 137–143 ). For some issues per the codex (bridges, pilings, pile drivers, barns, fireplaces), see Di Teodoro ( 1985 ; 1993 ; 2009 and [ forthcoming ]).

4 For the central plan, per additif esatto the fundamental Wittkower ( 1949 ) and Lotz ( 1964 and its Italian translation, 1989: 43–47 ); see also Adorni ( 2002 ).

5 Mediante arriving at this number I have also considered structures that are not ‘churches’ verso dato che, but that contain verso centralized or basilical plan: verso plan and perspective section of the ‘Pavilion of the Duchess’s Garden’ (‘Padiglione del paradiso della duchessa’; f. 12r) and the ‘preaching theater’ (‘teatro da p(re)dicare’; ff. 52r, 55r, 95r).

6 The drawings are distributed in the ten folded sheets that originally formed the codex as follows (the folded sheet 10 constitutes the present Codex Ashburnham 2037): folded sheets 1 (5), 2 (13), 3 (24), 4 (8), 6 (12), 10 (18).

7 In ff. 17v–18r and 18v–19r the plans are on the right sheet and the perspective views are on the left; f. 21r bears two distinct pairs of drawings; durante f. 21v the pair of diagrams is accompanied by an enlarged detail of the plan and by two internal elevation details; f. 25v bears two pairs of drawings; f. 93v contains five pairs of diagrams, while con f. 94r the plan and perspective elevation are accompanied by a partial section. The other sheets (22r, 24r, 39v, 52r, 95v) each contain individual pairs.